Coin operated induction coil



(No Model.) 2 SheetQ-Sheet 1. W. R. POPE.

00m OPERATED INDUGTION COIL.

No. 374,495. Patented Dec. 6, 1887.

WITN SES: INVENTOR: W Wfl W fl BY ATTORNEYS.

U ITED STATES PATENT OFFICE,

WILLIAM RILEY POPE, OF BALTIMORE, MARYLAND.

COIN-OPERATED INDUCTION-COIL.

SPECIFICATION forming part of Letters Patent No. 374,495, dated December6. 1887.

Application filed August 31, 1887.

To aZZ whom it may concern:

Be it known that I, WILLIAM RILEY Porn, of Baltimore city, in the Stateof Maryland,

' have invented a new and useful Improvement in Coin-OperatedInductionOoils, of which thefollowingisa specification.

The object of my invention is to provide a device for administeringelectricity for eX- perimental or therapeutic purposes which shall be soconstructed that the circuit shall be broken except just at the timewhen the device is used, and which shall be rendered operative by ,theinsertion of a coin or other detached article, so that the instrumentmay be set up in public places and left (without an attendant) to carefor itself and make its own collection.

To this end it consists in the peculiar construction and arrangement ofparts which I will now proceed to describe in connection with thedrawings, in which- Figure 1 is an outside perspective view of thedevice. Fig. 2 is an enlarged vertical longitudinal section. Fig. 3 is ahorizontal sec tion through line m m of Fig. 2. Fig. 4 is a verticalsectional view through line yy of Fig. 3, and Fig. 5 is a detail view ofdetached parts connected diagrammatically by circuit-wires.

A represents the outer case, in the face of which (see Fig. 1) is anopening, e, for a coin; also a dial-face with an index-hand,-M, and alsotwo pulls or handles, J J, which are constructed and connected withcircuit-wires within to form positive and negative electrodes. Thesehandles are made adjustable to pull out, and this motion is made toregulate in a progressive way the strength of the current transmittedthrough said electrodes. The farther the handles are withdrawn thestronger the current. This strength of current is indicated by theindex-hand,which, by gearing hereinafter described, has a deflectioncommensurate with the extent to which the handles are pulled out or thestrength of the current. This device in its normal condition of disuseis inoperative, there being no current until a coin (a nickel five-centpiece) is deposited in the opening e, which is made to establish acircuit, and is afterward dropped intoa receptacle within by the reversemovementof the handles.

Serial No. 248,427. (No model.)

The above results are attained by the following mechanism, referencebelng had to Figs. 2, 3, 4: The electrode-handles J J are connected byrods I I to cross-bars H H, which slide horizontally on guide-rods G G GG,fixed in the case. To the rear side of one of these cross-bars isattached achain or other flexible connection, E, which passes around apulley, E, then around a drum, F, on shaft F, thence around a pulley, Eis then connected to the shell D of an induction-coil, G, then passesaround a pulley, E and is attached to a weight, E. WVhen, therefore, thehandles J J are pulled out, it will be seen that the shell D of theinductioucoil is drawn off the coil and its power increased. Then thehandles are released, the gravity of the weight E draws the shell uponthe induction-coil again, and also pulls in'thehandles. Now, as thehandles J J are connected by wires d d with the secondary wire of theinduction-coil, it will be seen that a variable charge will betransmitted through the body of the individual grasping these handles.

For the uses of my invention I employ two batteries, B and B. One ofthese charges the primary wire of the induction-coil, when the circuitis completed, by the wires a a a and the coin-holder L, andthe otherbattery, B, serves, by devices hereinafter described and thecircuit-wires b b b, to release the coin from the coin-holder when thehandles are released. Fig. 5 shows in detail how this is accomplished.From the opening 0 in the outer case there is an inclined chute, e, forthe coin, which leads to the coin-holder, which consists of an armature,R, and a spring, t", the space between which is too small to allow acoin to pass. The spring 25 is insulated and held upon a block, it, andis connected to the wire (4 that leads to the primary of theinduction-coil. Just above spring 15 is a set-screw, 2, which isnormally out of contact with spring t", and is connected by a wire, a,with the battery, the other pole of which is connected by a wire, a,with the other end of the primary wire of the illduction-coil. Now, whena coin, a2, is inserted in the opening e and passes down the chute c,said coin lodges between the armature R and the spring 15 and forces itup into contact with screw t, thus establishing the primary circuit ofthe induction-coil and rendering the device operative, so that any onegrasping the handle-electrodes J J will receive a charge of electr1c1tymore or less strong, according to the extent to which the handles arepulled out.

To automatically release the coin and drop 1t into a receptacle belowformed by partition K, Fig. 2, I provide (see Fig. 5 again) a magnet, P,which, by attracting the armature R, releases the coin. This magnet ischarged by a current from the battery B through wires 1) b b. Thischarging is effected by a closure of this circuit by the inward movementof the handles from the influence of the weight E. As the handles go in,areverse rotary motion is glven to shaft F by the chain E on drum F, andthis shaft sets back the index-hand to zero, and also closes the circuitthrough I) b b as follows: N is a toothed wheel fixed rigidly on shaft Fand arranged to have its teeth play against a spring, 0. This spring 0(see Fig. 5) is a terminal of wire I) of Fig. 2, and a screw, 0',arranged close to' spring 0 is a terminal of wire I)". Now, when theshaft F is revolved in one direction while the handles J are beingpulled out, wheel N, Fig. 5, turns in the direction of the arrow, andits teeth pnll spring 0 away from screw 0, and the circuit through themagnet P is broken, and the coin is held and the apparatus is operative.\Vhen, however, the handles J are released and pass in, the direction ofmovement of shaft F is reversed and spring 0' for a coin or otherdetached article having 1 contact-points arranged in the circuit,whereby the presence of the coin is made to close the circuit,substantially as and for the purpose described.

y 2. The combination, with a battery and an,

induction-coil having a movable section, of a pair of adjustable handlesor electrodes connected to the secondary circuit-wires, and also to themovable section of the induction-coil, whereby the adjustment of theelectrodes is made to move the movable section of the induction-coil andgraduate the strength of the current, as set forth.

3. The combination of an induction-coil, two electrodes connectedtherewith and formed as handles, a connection between the handles andthe movable section of the induction-coil, and an index-hand and dial,the said index-hand being connected to and operated by the handlessimultaneously with the adjustment of the inductioncoil section,substantially as shown and described.

4. The combination, with an induction apparatus, as described, withadjustable handles, a primary wire circuit with coin-holder, andcontacts in the same, of a second battery-circuit, and magnet forreleasing the coin from the coin-holder, and contacts in said secondcircuit connected to and operated by the ban \VILLIAM RILEY POPE.

\Vitnesses:

Enwn. W. BYRN, SoLoN G. KEMON.

